优生学具有生物学上的意义.Eugenics has a biological significance.对 “ 积极 ” 优生学和 “ 消极 ” 优生学往往加以区分.A distinction is often made between " positive " and " negative " eugenics.消极优生学的范例是试图破坏一种对人体有害的隐性基因.An example of negative eugenics woul...
The new - opened museum exhibits memorabilia in his long career.(新落成的博物馆展出他长久生涯的重要物品. )Do you keep many books and papers and memorabilia?你是不是收藏了大量的书籍、报纸和纪念品？a museum devoted to railway memorabilia专门收藏铁路纪念物的博物馆a swap meet...
The road downward has but few landings and level places.下坡路上很少有落脚点和气地.Henry said through the car window, " Goodbye, Pam . Happy landings. "享利隔着车窗说: “ 再见, 帕姆. 一路顺风. ”A milky twilight crept about the stairway and the landi...
Fewer than 7% of asylum seekers are accepted as political refugees.寻求避难者中有不到7%的人被视作政治难民。The report shows that fewer couples are getting hitched.报告显示，结婚的人数呈下降趋势。Childbirth now held fewer terrors for her than it once had.她...